For loops Scripts for File System - 2 ======================================== 1 - Rename all *.txt files extension to none #!/bin/bash for filename in *.txt do mv $filename ${filename%.txt}.none done --------------------------------------------------------------------- 2 - Check to see if files exist #!/bin/bash # List of files you are curious about FILES="/etc/passwd /etc/group /etc/shadow /etc/nsswitch.conf /etc/sshd_ssh_config /etc/fake" echo for file in $FILES do if [ ! -e "$file" ]       # Check if file exists. then echo $file = does not exist echo fi done